Lifecycle

IMP provides snapshot-based lifecycle primitives for save/restore and fast VM provisioning.

Sections

• Snapshot
• Warm Pool

Concepts

• ImpVMSnapshot: captures a running VM's memory and disk state. Supports one-shot and scheduled recurring captures.
• ImpWarmPool: keeps a pool of pre-booted VMs ready for instant assignment. Pool members boot from an elected snapshot base.

For latency-sensitive workloads, use warm pools. VMs boot from a snapshot and wait for assignment.

Runtime and Pressure Handling

• imp-runtime uses updateStrategy: OnDelete. It never rolls automatically. See Day 0: Runtime OnDelete for the cordon, drain, and delete-pod rollout.
• pressureLifecycle.enabled is false by default. When enabled, the operator suspends the largest VMs first on MemoryPressure and never auto-resumes. See Day 0: pressureLifecycle and Architecture: Operational Notes.